b:activateLibraries Adds bootstrap css and js, jQuery and pretty print to head part to activate libraries for sites not containing any other ButterFaces component.
In addition to that all butterfaces css, js and jQuery pluging will be added to head part.

If web.xml parameter de.larmic.butterfaces.useCompressedResources is set (default is true) a compressed version of all resources are added instead of each resource.